This project is no longer maintained as the 3rd party service it relied upon is now defunct. This project maybe of use as a reference for other similar modules.
DrupalGapps core module will provide an API which will act as a Wrapper to Google Apps API and will be the highlight of this project. Being more specifc, Google Apps API has 2 components :
This module allows you to set up access to the site on base of request referrer, remote IP address or User Agent with reverse-lookup check of domain name (for searchbots)
The module provides API for other modules to send notification emails.
Install this module only if you use another module which depends on it.
The module provides user interface to edit email address, subject and body template using set of variables.